Vital Observations Flashcards
Where can an oxygen saturation probe be placed?
Finger, nose, toe, earlobe and forehead.
What does an oxygen saturation probe monitor?
The % of haemoglobin that is saturated with oxygen.
What can affect an oxygen saturation reading?
Nail polish, cold temperature and dirty sensors.
What can influence blood pressure?
Age, sleep, activity, emotion and running
What is systolic blood pressure (top)?
Measures the force of blood when your heart contracts, measuring peak force of blood.
What is diastolic blood pressure (bottom)?
Measures when the heart relaxes between beats. The force on the walls of the arteries as the heart reflexes and refills.
Which artery do you place the stethoscope over when taking blood pressure?
The brachial artery.
What part of the body controls temperature?
The hypothalamus.
Which ways can you take temperature?
Tympanic (ear), nasopharyngeal (nose), esophageal (oesophagus), rectal (anus), axillary (armpit), sublingual (under tongue), buccal (cheek), temporal artery (forehead).
What are the most common ways to take a child’s temperature?
Tympanic (ear) and axillary (armpit).
What is a normal capillary refill time?
2 seconds or less.
How long do you apply pressure to the nail bed when checking capillary refill time?
5 seconds.
What factors can prolong capillary refill time?
Age, cold surroundings, poor lighting, reduced tissue perfusion, hypovolemic shock, circulatory disease and dehydration.
Capillary refill time assess’ peripheral perfusion, what is this?
Blood flow to the tissues in the extremities.
What is a pulse?
Pressure wave of blood caused by alternating expansion and recoil of arteries during each cardiac cycle.